Prince Harry and Meghan Markle introduced their baby son to the world on Wednesday.

The pair posed for a photocall inside St George’s Hall Windsor Castle two days after Meghan gave birth to the little one. The hall is the same venue the couple’s daytime wedding reception was held in.

The Duchess of Sussex looked as stunning as ever for the appearance, with her donning a white dress by London-based British designer Grace Wales Bonner.

Britain’s Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George’s Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are “thinking” about names. (Dominic Lipinski/Pool via AP)

The couple then took to Instagram to thank fans for their “wishes and support” since the birth.

Meghan said the tiny royal, who was wrapped in a wool G.H. Hurt & Son blanket and wore a matching cap, was “really calm” as she spoke about parenthood.

The new mom gushed, according to People: “He has the sweetest temperament. He’s really calm.”

Harry added, “I don’t know where he gets that from!” as Meghan continued: “He’s just been a dream. It’s been a special couple of days.”

Prince William and Kate Middleton also posed for photos outside the hospital soon after welcoming all three of their children.

Harry and Meghan previously announced they’d be spending some quality time together as a family before posing for the pics, but just two days after the birth they are showing the newborn off to the world.

Britain’s Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George’s Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are “thinking” about names. (Dominic Lipinski/Pool via AP)

The appearance comes after The Palace released a statement to ET Canada Monday confirming the Duchess of Sussex had gone into labour in the early hours of the morning.

The statement read: “Her Royal Highness The Duchess of Sussex was safely delivered of a son at 0526hrs. The baby weighs 7-pounds, 3-ounces.”

It continued, “The Duke of Sussex was present for the birth. The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall, The Duke and Duchess of Cambridge, Lady Jane Fellowes, Lady Sarah McCorquodale and Earl Spencer have been informed and are delighted with the news.”

“The Duchess’ mother, Doria Ragland, who is overjoyed by the arrival of her first grandchild, is with Their Royal Highnesses at Frogmore Cottage.”